Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to JP17753180UpriorityCriticalpatent/JPS57100749U/ja
Priority to US06/325,852prioritypatent/US4488160A/en
Priority to DE3148083Aprioritypatent/DE3148083C2/de
Publication of JPS57100749UpublicationCriticalpatent/JPS57100749U/ja